Drake and Josh both find out that Drake's Mom, and Josh's Dad, get married to each other unexpectedly. Drake finds it completely wrong. And Josh on the other hand is really excited. Right as Drake things his life is miserable, things get better. He discovers that Josh is actually Miss Nancy, a person who gives advice in the school newspaper.
After reading one of Josh's Miss Nancy letters, Drake discovers that Tiffany (the girl he likes) is having trouble with her boyfriend. Drake uses this advantage to go on a date with her. But Tiffany's real boyfriend gets things confused, and thinks Josh is dating Tiffany! Now Josh must study to be excellent at karate before Tiffany's boyfriend scars him for life.